Endress+Hauser Mycom CLM 152 Operating Instructions

Conductivity factory setting:
0/4 mA → 0mS
20 mA → MR end value
Factory setting MΩ
0/4 µA → MR start value
20 mA → MR end value
Example: Measuring range allocation of a sensor with CLS 52, rising characteristic
• The measuring range is determined by
defining the conductivity values at 0 mA,
4 mA and 20 mA.
• The difference between the 20 mA value
and the 0/4 mA value must be greater than
the current output spread TD of the
switching step in which the 20 mA value is
located.
• If 300 µS/cm is specified for the 20 mA
value, the 0/4 mA value must be at least
200 µS/cm (TD for switching step 1)
smaller.
• Possibilities 100 µS/cm ... 300 µS/cm
or 0.0 µS/cm ... 300 µS/cm
but not 150 µS/cm ... 300 µS/cm!
B) Bilinear current output signal characteristic
Sensor MR 1
1)
MR 2
1)
MR 3
1)
MR 4
1)
MR 5
1)
Conductivity
CLS 50
0  200.0 µ S/cm 200  2000 µ S/cm
2.00  20.00 mS/cm 20.0  200.0 mS/cm 200  1000 mS/cm
max. TD
20.0 µ S/cm 200 µ S/cm
2.00 mS/cm 20.0 mS/cm 100 mS/cm
CLS 52
0  2000 µ S/cm
2.00  20.00 mS/cm 20.0  200.0 mS/cm 200  1000 mS/cm
max. TD
200 µ S/cm
2.00 mS/cm 20.0 mS/cm 100 mS/cm
k = 0.01 0.0  200.0 nS/cm
0.200  2.000 µ S/cm 2.00  20.00 µ S/cm 20.0  200.0 µ S/cm
max. TD 20.0 nS/cm
0.200 µ S/cm 2.00 µ S/cm 20.0 µ S/cm
k = 0.1
0.000  2.000 µ S/cm 2.00  20.00 µ S/cm 20.0  200.0 µ S/cm 200  2000 µ S/cm
max. TD
0.200 µ S/cm 2.00 µ S/cm 20.0 µ S/cm 200 µ S/cm
k=1
0.00  20.00 µ S/cm 20.0  200.0 µ S/cm 200  2000 µ S/cm
2.00  20.00 mS/cm
max. TD
2.00 µ S/cm 20.0 µ S/cm 200 µ S/cm
2.00 mS/cm
k=10
0.0  200.0 µ S/cm 200  2000 µ S/cm
2.00  20.00 mS/cm 20.0  200.0 mS/cm
max. TD
20.0 µ S/cm 200 µ S/cm
2.00 mS/cm 20.0 mS/cm
MΩ
k = 0.01
20.0  200.0 k Ω cm 200  2000 k Ω cm
2.00  20.00 M Ω
cm
max. TD
20.0 k Ω cm 200 k Ω cm 2.00 M Ω cm
k = 0.1
2.00  20.00 k Ω cm 20.0  200.0 k Ω cm 200  2000 k Ω cm
max. TD
200 k Ω cm 200 k Ω cm 200 k Ω cm
k=1
0.200  2.000 k Ω cm 2.00  20.00 k Ω cm 20.0  200.0 k Ω cm
max. TD
0.200 k Ω cm 2.00 k Ω cm 20.0 k Ω cm
1) The measuring range is adapted automatically to achieve maximum precision and resolution via the internal switching steps.
4
(0)
12
(10)
20
Output current [mA]
Current output meas. range [%]
0 20406080100
Meas. value
for knee point
Current at knee point: 50 %,
i.e.12 (10) mA
Values in brackets for
current output 0...20 mA
bilinear.cdr
Fig. 7.3
Current output signal
with bilinear characteristic
lm152e07.chp
Mycom CLM 152 Instrument configuration
Endress+Hauser 43

Endress+Hauser Mycom CLM 152 Specifications

General

Brand	Endress+Hauser
Model	Mycom CLM 152
Category	Transmitter
Language	English